41 lines
683 B
Plaintext
41 lines
683 B
Plaintext
Unlike strongly typed languages, JavaScript does not enforce a return type on a function. This means that different paths through a function can return different types of values, which can be very confusing to the user and significantly harder to maintain.
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== Noncompliant Code Example
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----
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function foo(a) { // Noncompliant
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if (a === 1) {
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return true;
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}
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return 3;
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}
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----
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== Compliant Solution
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----
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function foo(a) {
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if (a === 1) {
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return true;
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}
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return false;
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}
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----
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== Exceptions
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Functions returning ``++this++`` are ignored.
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----
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function foo() {
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// ...
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return this;
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}
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----
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Functions returning expressions having type ``++any++`` are ignored.
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